Improvement in compression-cocks



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CHARLES PERKES, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 96,033, dated October 19, 1869. I

IMPROVEMENT IN COMPRESSION-COCKS.

The Schedule referred to in these Lettera Patent and making part of the same.

To all whom it may concern Be it known that I, CHARLES PEnKns, of the city of Philadelphia, and State of Pennsylvania, have invented a certain new and useful Improvement in Stops, or Valves for Controlling the Flow of Fluids in Tubes; and I do hereby declare the following to be a full, clear, and exact description thereof', reference being had to the accompanying drawings, and the letters of reference marked thereon.

The nature of my invention consists in so forming and applying the valve and the seat that they relnain automatically in proper repair and adjustment, and are not subjected to the wear and destruction incident to other stop-valves or cocks.

The precise construction and character of my iinprovenlentwill fully appear in the following description and drawings annexed.

The saine letters of reference apply to the same parts in the several figures.

Figure 1 shows a side elevation.

Figure 2 shows a vertical section.

Figures 3, 4, 5, and 6, show the parts in detail.

The several figures show the application of this invention to wateraucets or hydrants.

A represents a valve-seat.

B represents the valve, which is made of any elastic material, vulcanized rubber being found the most convenient. This valve B is made spherical, and when open is free to float and rotate in the current of fluid passing through the cock` in the direction of the arrows in fig. 2.

rIhe seat A is not spherical, but is formed so as to be a zone of an oblate spheroid.

The cup C is depressed by the screw D, retained by the collar E formed' upon it, and confined by the cap F, working in the nut G, formed on the upper portion of' the cup C, when the valve B is compressed into a spheroidal form, and ts to the cup Gand valve-seat A, and, by being rotated by the current, is presented in all directions to the compressing action of the screw of seat and cup, in combination with a loose elastic ball. It is, that any foreign matter' between the valve and'seat is readily drawn by the current from between them, by reason of the diverging form of the space `iu relation to the direction of the current.

I am aware that elastic balls free to rotate in currents have been used as self-acting valves for pumps; also, that valves having elastic packings have been used with seats corresponding in form with the form of the valve when not compressed; and, also, that valves formed of' an elastic sphere have been used with a seat of metal of corresponding form, into which they have been forced and expanded, by screw or other conrex form pressing in the side of the sphere opposite to the opening which the valve is intended to close. All of these, therefore, I distinctly disclaim; but

What IV claim as my invention, and desire to secure as such by Letters Patent, is

The combination of the spherical elastic loose-ball valve with the oblate -spheroidal seat and Oblatespheroidal compressing-cup, substantially as described.

. CHARLES PERKES Witnesses:

D. A. Davis, [L s.] 

